code: def _session_callback(self, loop, *args, **kwargs):
      return asyncio.run_coroutine_threadsafe(
          self.post(*args, **kwargs), loop
      )
  
file_path: perspective/python/perspective/perspective/handlers/common.py
imports: import asyncio
  from abc import ABC, abstractmethod
  import functools
  from ..core.exception import PerspectiveError
label_desc: Use image node_id 3 for calling the PerspectiveHandlerBase obj's underlying member method code with example usage: obj._session_callback(loop) and returns: asyncio